Pallet laying and elevating machine.



[N VE N TOR lha-Lw y TTC RXE Y Patented Nov. 21, 1911.

3 SHEETS-SHEET 1.

mw.. mw w Ev B. C. HEATER.

APPLICATION FILED AUG. 8, 1910.

PALLET LAYING AND BLEVATING MACHINE.

L i mw m 1 RM. T w/ www W Qn? @Y ..-/f v m\\ @L 1-161% QN uw 11 mm1 L D w n J g \Q\\ Q -F Q1 uw. u -1.1mm Y m N Olm WITNESSES B. C. HEATER. PALLBT LAYING AND ELEVATING MAUHINE.

APPLICATION FILED AUG.a,191o.

1,009,41 1. Patented Nov.21, 1911.

3 SHEETSwSHEBT 2.

i, f INVENTOR.

6 BY l y MJ, M. KM my@ A TTORNE Y.

[1"] TNESSES:

B. C. HEATER.

PALLBT LAYING AND EUEVATING MACHINE.

APPLIGATIUN FILED Alma, 1910.

1,009,41 1Al Patented N0v.21, 1911.

3 SHEETS--SHBBT 3` M BY' g a I( 1 A TTORNE Y.

BRTNEY C. HEA'TER. IOIF MINT@- TOWNSHIP, ONTARIO, CANADA.

f PALLET LAYING AND ELEVATING MACHINE.

Specication of Letters Patent.

Patented Nov. 21, 191.1.

Application tiled August 8, 1910. Serial No. 576,235.

To all whom it may concern:

Bc it known that I, BERTNEY C. HEATER, of the township of Minto, (post-oilice, Drew,) in the Province of Ontario, Canada, have invented ce1-tain new and usefulV Improvemcnts in Pallet La ing and Elevating Machines, of which the tollowing is a specitlcation.

This inventionl relates to machines for automatically placing pallets in position to receive the molds of brick and for carrying away and elevating the filled pallets in a convenient position to be taken off to the drying racks.

I attain my object by mechanism which may be briefly described as follows z-From a suitab.` magazine pallets are drawn one by one through the agency of an inclosed carrier. As soon as a pallet reaches a predetermined position it enters a pallet holder and is tilted on edgeto a. convenient position to have a mold of bricks placed upon i't. The tilting of the pallet holder stops the driving mechanism which again starts as soon as the pallet holder is returned to its normal position. The pallet of bricks is then drawn forward out of the allet holder onto a table from which it is li ted by an endless elevator provided with a ,series of pairs of arms adapted to engage beneath the pallets. The parts and the drive are so proportioned that one pallet is lifted before the next starts to leave the holder.

s Figure 1 is a front elevation partly in secwtion of the apparatus. Fig. 2 is a cross section on the line y in Fig. 1, showing part `only of the liftin mechanism. Fig. 3 is an enlarged detail o the gearing shown in Fig. 2 with the parts in a different position. Fig. 4 is a side elevation of the gearing taken from the left hand side of Fig. 3. Fig. 5 is a front elevation of a portion of the elevator. Fig. 6 is a side elevation of the same. Fig. 7 is a detail in side elevation of the elevator-actuating pawl and ratchet device. Fig. 8 is a perspective detail of the pallet holder. Fig. 9 is an enlarged section ofthe pallet holder. Fig. 10 is a perspective detail of the pallet holder actuating wiper.

Fig. 11 is a detail in side elevation of the spring of the clutch shifting mechanism. In the drawings like figures of reference indicate corresponding parts in the different. figures.

1 is the frame of the machine suitably shaped to support the different parts., At

one end of this frame is supported the pallet magazine 2. This magazine has an opening 3 in its front end through which pallets may be drawn one by one in a well known manner. An endless carrier 4 is carried by the sprocket wheels 5 journaled on the frame. One of these sprocket wheels, preferably that at the left hand in Fig. 1, has its bearings so connected with the frame that slack in the carrier may be taken up when necessary. I show for this purpose the bearings connected with the frame by'an ordinary bolt and slot connection 6, though other means may, of course, be employed for the purpose. The carrier 4 is preferably a sprocket chain and certain of the links at appropriate intervals are provided with carrier lugs 7 projecting outwardly therefrom. These lugs have preferably a lateral extension 8, as shown particularly in Fig. 3, the purpose of which will shortly appear. The purpose of the carrier 4 is to draw pallets from the magazine one by one tothe pallet holder 9 and thence to an elevator as will hereinafter appear.

The pallet holder 9 it will be seen is provided at opposite edges with the guides 10 for the pallet. The holder.is also hinged at 11 on the frame 1, so that it may be tilted to the position shown -in Fig. 3 in order that a mold of bricks may be applied to the pallet. The holder is then returned to its normal position. After being loaded while in the pallet holder,the pallet is drawn forward by the carrier to the table 1Q, from which it is lifted by the endless elevator 13. This elevator mgst be of special construction in order that there shall be sufficient space for the pallet of bricks between adjacent load receiving members without having the latter too far apart, and must also possess stiffness in its vertical sections without interference with the bending of its sections around the driving and supporting members. I attain these characteristics by the following construction: 14 arev sprocket chains running on the sprocket wheels 15 on the shaft 16 at the lower end of thel elevator and 17 at the upper end of the elevator. These shafts are journaled in a vertical extension of the frame 1. The elevator is provided with a series of sections each compris- Pross har 18 and over the. second adjacent. ing one ol' the provlot wht-vl.-y t. fr :ho-.fn

eross har, as shown particularly in Figs. 5

and (l.

This arrangclnfnt malins the (illu ,1- t

tor suhstantially rigid against` pressure from the front. which is an important fvatnro when tht olevutor is subsequently unloaded. .\t. thtl `mme time nach section houde l'rovly around tht: sprocltot wheels '15,asshown par tiruhtrly in Digs. Q and (i and the stotions will not 'Fall forward when they patin over tho oppor Sp1-nehmt wheels to more down- 'ardliY to pallot loading position again.

lt i desirable that thv rari-im' t and thtt-lr-valor t3 he intrrmittvntly lnorod, the, i'novenlent of the cai'ritr taking' plane whilt` tho ellt'ator is Stationary and vier Verna. lt is also dusirahle that tho rarrior mochanism Should Stop duringr thv opvration olf lozulinLr a ballot whihe it i iu th(` holdvr .(l. To arrotnplifah the t'lt-Qirrd rosult: l provide the Following' drivingr mmhanism: il iS tlu driving Shaft whirh if;` provided with a anitahh driving pullojy 22. 0n this Shaft in a longe gear pinion An ordinary rlutoh t in providrd whom-hy a driving connort i may he formed between the gear pinion and tho `whalit. This 'rlutt-h is providt-d with an ordinary `hitter nwthanism connected wil h ono arln o'l" thvfht-ll eranh luverlt'y. Thr othvr :ii'nl ot this hell Crank lovor if: ronnt-tted with a rod QT whith pre'ltrahly paf-sei. throiLfli the and of the lever. A looso collar 38 is provided on the rod 27 and he.- tnovn tho loose eollar QB and the adjnstahle. t'ollar itl is placed a roil primar 30. This rofl J7 is pivotally connettori with one arm of a lit-ll t-ranlt lever 3l. Thel other arm of this"l hell vranlt lover 3l is; oonneoted h v a rod 52 with one arm of a hell rranlt levor 3i! whit'h hy means of a rod 33 is oonnectod with the pallet holdtl' 9. The rorltingi ol the pnllrtl holder to a vertital position will thns through the medium of thtl firing actu- :itt-d rollar 29. throw the oluttfh 24 ont ot'I gear and Stop the driving of the apparatra. While this tilting' ot' tha pallet holtitr might he dono h v hand l prefer that it Shall he fmf-omplishod autolm'xtitally as willlieroinaftor appear.

Thor power to operate the carrier and the elevator is talten from the` pinion Q3 the following' mrthaniam: Btl is a eountorshal't on whvh is Secured tht` gaar whtel 35 incohing with the pinion Q3. the Shaft .",4 is y@cured a rranl: arm 3G. By means ot' n Suitable` connntting rod this rranlt arm artnatos a erosq head 37 sliding on thtygzuidtS 538. Thin cross hond has ronnvoted therewith tho ronntrting rod 39, the othor ond of whit-h is connected with the roel( arm 4l) pivoted on the shaft l? and marrying a dog: 41 engaging the ratchet wheel 4'2 Rennrad to thL` Said shaft 17. TheA shaft' 17 is held as moved.r through the. modinm of a gravity dog 43 preferably engag- 0n the end ot"1 parlitularljY ilr Fig. (t.

To tilt llu pallot holdrr l ,wt-nro at. tht` ond ol' tht` vonnttr ahalit :t wipvr 5l adapted to engage :l i'nojer'tion 5l on thv hell tl'anltY lt'vtr ll whit-h it i'oeltsr and thm: p:t\e;-'.

The optralion of th:` doviro isnhxtaw lially :M l'ollo\\'s:--'i`lu drive' dial'i llt-iup; l'wltt'd np toa nit'rihlo wort-o of poner. and thtrlntrh hoing in tirar. tlu` tnrrhanihtn darts and a pallvt in drawn l'roin thtl loner end ol tho magazine L. n pnlht approat-heS its position in tiu holdrr 'Il the intter rotunitntoq to tilt throng'h the notion otn the wiper ."l on thtI projet-tion 3|. The tiling; ol the hoidor low not iuterl'rl'r with the tngagrnwnl ot .lw pnlltt with thtl lug owing to thrlatornl oxtrmion Fl on tho latter. ily-thv time thv pnlltt in propvrly po ilione l in the holden' the lntttr hahy linnn tiltvd to the position shown in Fig'. fl and the tlrivo is thrown out of gear in llu` nnunur :drt-:illy rlvstrihtd. 'l`ht :ittontlant load@` a tnoltl ol hrit-k ou tinx palht and thou tipa thtl holdrr haelt to its normal position. 'lho drivingr notion and the pallet in drawn from the` holdor to the tahlr-` lil. fw Hoon :in tht` litat pallot It'fnthon the tahh :i Srt'ontl pnllvt. reat'hes itsl position in tht` holder and thov timehirustop#t an hooru. 'The elevator moves und elovates tlul pallet` of hrirlti4 sul`- tieientl).y to allow the next pallet of liriclts to ho plat'td in position ou they tahlt` an soon as tho nuohauiom is putin guar hy tho rcturY of the palltt holder to its normal untiltt'd position. As soon as the elevator ia full the pallets of hrt-k aire littfd therefrom and tnltrn away to the drying racks. preferahly h v n apetial trnek which l havo devised and which will form tho` subject mattrr of a separate application.

In order that the wipor 5l shall fall forward, after artzuating the. hell frank lover 3l oulliciontzly to insure that' the projection 51twill he clearly behind it when the pallet;

ist]

IUI)

shaft.

holder is tilted back to normal position after being automatically tilted up, I preferably make the Wiper loose on the shaft 34 and provide its hub with a projection engaging in the notch in the collar 56 secured to the This notch is lon enough to allow the wiper to fall forward as desired. The collars Q8 and 29 are preferably connected by rods 57 having heads at one end and adjusting nuts at the other whereby `t'lie tension of the spring may be adjusted. These rods also serve to holdY the lowel collar in place while the spring prevents danger of breakage if the clutch teeth are not in proper position to engage at the time the clutch is shifted.

From the above description it will be seen that I have devised an apparatus which will satisfactorily accomplish the objects of my invention. I do notv desire. however, to bind myself to the details of construction shown` as these maybe departed from in many cases while retainirg the same principle of 'operation.

That I claim as my invention is 1. In a pallet laying machine the combination of 4a pallet magazine; an endless carrier adapted to draw pallets one-by-one from said magazine; a tilting pallet holder into which the pallets are drawn; driving mechanism: a clutch in said driving mechanism; clutch shifting mechanism operated b v said allet holder wherebywhen the pallet holder 1s tilted from its normal horizontal position the driving mechanism is thrown ou`t of gear; and means for automatically tilting the pallet holder when a pallet has been drawn into it by the carrier.

2. In a pallet laying machine the combinati n of a pallet magazine; an endless ear'- rier adapted to draw pallets one-by-nne from said magazine; a tilting pallet holder into which the pallets are drawn; driving mechanism; a clutch in said driving mechanism; clutch shifting mechanism operated by said iallet holder whereby when the pallet is tilted from its normal houizontal position the driving mechanism is thrown out of ear; means for automatically tilting the pallet holder when a pallet has been drawn into it by the. carrier; a nl ovablc pallet receiving device and means for intermittently actuating said brick receiving device to carry away each pallet as it is fed to it. 3. In a pallet laying inaehine the combination of a pallet magazine: an endless carrier adapted to draw pallets one-hymne fromsaid magazine; a pallet holder into which the pallets are drawn; a movable receiver to which the pallets are fed by the carrier after being drawn from the palletfholder; a drive shaft; intermittent geariiig for imparting a step-wise movement to the carrier and the movable receiver adapted to move the carrier each time the movable receiver is stationary and vice versa; and a clutch connection between the drive shaft and the intermittent gear.

4. In a pallet laying machine the combination of a pallet magazine; an endless carrier adapted to draw pallets one-by-onc from said magazine; a tilting pallet holder into which the pallets are drawn; a movable receiver to which the palletsare fed by the carrier after being drawn from the pallet holder; a drive shaft; intermittent gearing for impartin a'stcp-wise movement to the carrier and t e movable receiver adapted to move the carrier while the movable receiver is stationary and vice versa; a clutch connection between the drive shaft and the intermittent gear; and clutch shifting mechanism operated by said pallet holder whereby when the pallet is tilted from its normal horizontal position the driving mechanism is thrown ont of gear.

5. In a pallet laying machine the combination of a pallet magazine; an endless carrier adapted to draw pallets one-byone from said magazine; a tilting pallet holder into which the pallets are drawn; a movable receiver' to which the allets are fed by the carrier after being rawn from the pallet holder; a drive shaft; intermittent gearing for imparting a step-wise movement to the carrier and the movable receiver adapted to move the carrier while the movable receiver is stationary and vice versa; a clutch connection between the drive shaft and the intermittent gear; clutch shifting mechanism operated by said pallet holder whereby when the pallet is tilted from its normal horizonv tal posit-ion the driving mechanism is thrown ont of gear; and means for automatically tilting the pallet holder when a pallet has been drawn into it by the carrier.

Toronto, Ont., this 25th day of July 1910.

J. Emv. MAYBEE, E. P. HALL, 

